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/*=========================================================================
Program: ParaView
Module: vtkSMRemoteObject.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSMRemoteObject.h"
#include "vtkObjectFactory.h"
#include "vtkProcessModule.h"
#include "vtkSMMessage.h"
#include "vtkSMSession.h"
#include <vtksys/SystemTools.hxx>
#include <sstream>
//----------------------------------------------------------------------------
vtkSMRemoteObject::vtkSMRemoteObject()
{
this->GlobalID = 0;
this->GlobalIDString = NULL;
this->Location = 0;
this->Session = NULL;
this->Prototype = false;
this->ClientOnlyLocationFlag = false;
}
//----------------------------------------------------------------------------
vtkSMRemoteObject::~vtkSMRemoteObject()
{
if(this->Session && this->GlobalID != 0)
{
this->Session->UnRegisterRemoteObject(this->GlobalID, this->Location);
}
this->SetSession(0);
delete [] this->GlobalIDString;
this->GlobalIDString = NULL;
}
//----------------------------------------------------------------------------
void vtkSMRemoteObject::SetSession(vtkSMSession* session)
{
this->Superclass::SetSession(session);
// Register object if possible
if(this->Session && this->GlobalID != 0)
{
this->Session->RegisterRemoteObject(this->GlobalID, this->Location, this);
}
}
//----------------------------------------------------------------------------
void vtkSMRemoteObject::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "GlobalID: " << this->GlobalID << endl;
}
//---------------------------------------------------------------------------
bool vtkSMRemoteObject::HasGlobalID()
{
return this->GlobalID != 0;
}
//---------------------------------------------------------------------------
vtkTypeUInt32 vtkSMRemoteObject::GetGlobalID()
{
if (this->Session != NULL && this->GlobalID == 0)
{
this->SetGlobalID(this->GetSession()->GetNextGlobalUniqueIdentifier());
}
return this->GlobalID;
}
//---------------------------------------------------------------------------
const char* vtkSMRemoteObject::GetGlobalIDAsString()
{
if (!this->GlobalIDString)
{
std::ostringstream cname;
cname << this->GetGlobalID();
delete [] this->GlobalIDString;
this->GlobalIDString = vtksys::SystemTools::DuplicateString(
cname.str().c_str());
}
return this->GlobalIDString;
}
//---------------------------------------------------------------------------
void vtkSMRemoteObject::SetGlobalID(vtkTypeUInt32 guid)
{
if(this->GlobalID == guid)
{
return;
}
if(this->GlobalID != 0)
{
vtkErrorMacro("GlobalID must NOT be changed once it has been assigned.\n"
"Try to set " << guid << " to replace the current "
<< this->GlobalID << " value.");
abort();
}
// Keep new ID
this->GlobalID = guid;
// Register object if possible
if(this->Session && this->GlobalID != 0)
{
this->Session->RegisterRemoteObject(this->GlobalID, this->Location, this);
}
}
//---------------------------------------------------------------------------
void vtkSMRemoteObject::PushState(vtkSMMessage* msg)
{
vtkTypeUInt32 filteredLocation = this->GetFilteredLocation();
if(filteredLocation == 0)
{
return; // This object is a prototype and has no location
}
// Check if a GUID has been assigned to that object otherwise assign a new one
vtkTypeUInt32 gid = this->GetGlobalID();
msg->set_global_id(gid);
msg->set_location(filteredLocation);
if (this->GetSession())
{
this->GetSession()->PushState(msg);
}
else
{
// no session, nothing to do.
}
}
//---------------------------------------------------------------------------
bool vtkSMRemoteObject::PullState(vtkSMMessage* msg)
{
if(this->Location == 0)
{
return true; // This object is a prototype and has no location
}
msg->set_global_id(this->GlobalID);
msg->set_location(this->Location);
if(this->GetSession())
{
this->GetSession()->PullState(msg);
}
else
{
vtkErrorMacro("Attempting to PullState() on a " << this->GetClassName()
<< " after the session has been destroyed.");
return false;
}
return true; // Successful call
}
//---------------------------------------------------------------------------
void vtkSMRemoteObject::EnableLocalPushOnly()
{
this->ClientOnlyLocationFlag = true;
}
//---------------------------------------------------------------------------
void vtkSMRemoteObject::DisableLocalPushOnly()
{
this->ClientOnlyLocationFlag = false;
}
//---------------------------------------------------------------------------
vtkTypeUInt32 vtkSMRemoteObject::GetFilteredLocation()
{
if(this->ClientOnlyLocationFlag)
{
return (this->Location & vtkPVSession::CLIENT);
}
else
{
return this->Location;
}
}
//---------------------------------------------------------------------------
vtkClientServerStream& operator<< (vtkClientServerStream& stream,
const SIOBJECT& manipulator)
{
vtkClientServerStream substream;
substream << vtkClientServerStream::Invoke
<< vtkClientServerID(1) // ID for the vtkSMSessionCore helper.
<< "GetSIObject"
<< manipulator.Reference->GetGlobalID()
<< vtkClientServerStream::End;
stream << substream;
return stream;
}
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